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THE MELTING RELATIONS OF POTASH FELDSPAR, SODA FELDSPAR, AND FLINT MIXTURES 1
Author(s) -
Amberg C R.,
Gallup J. L.
Publication year - 1931
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1931.tb17911.x
Subject(s) - feldspar , potash , geology , quartz , mineralogy , sanidine , geochemistry , alkali feldspar , plagioclase , mineral , materials science , metallurgy , potassium , paleontology
P.C.E. values of ternary mixtures of potash feldspar, soda feldspar, and flint were determined and results shown on a solid phase diagram. No eutectics were developed with either of the binary series of feldspar and flint. The soda feldspar‐flint mixtures were more refractory than were those of the potash feldspar series. At least 20% flint variation with potash feldspar will show no change in P.C.E. values and at least 10% with the soda feldspar showing the unreliability of P.C.E. to indicate the amount of the quartz content.